Cavalry and weapons demonstrations at Harpers Ferry National Historical Park will be offered Saturday and Sunday, between 11 a.m. and 4 p.m., on the Lower Town Green. The event is inspired by the Sept.14, 1862 escape of about 1,500 Union mounted soldiers from Harpers Ferry across the Potomac and into Maryland as Gen. Thomas "Stonewall" Jackson's troops closed in on the town. Following heavy bombardment of the Union garrison the next morning, a white flag of surrender was raised and 12,000 Union soldiers were forced to surrender to the Confederates.

The program, “Eyes of the Army: The Cavalry Factor 1862,” is free to visitors after paying a parking fee at the visitors center. A shuttle bus runs between the center and the program site. The cavalry part of the program, titled “Escape from Stonewall’s Trap: the US Cavalry Factor,” takes place at 1 and 3 p.m.